EP 4086039 A1 20221109 - A MOTORISED MEASUREMENT ARM APPARATUS FOR A MACHINE TOOL
Title (en)
A MOTORISED MEASUREMENT ARM APPARATUS FOR A MACHINE TOOL
Title (de)
MOTORISIERTE MESSARMVORRICHTUNG FÜR EINE WERKZEUGMASCHINE
Title (fr)
APPAREIL À BRAS DE MESURE MOTORISÉ POUR UNE MACHINE-OUTIL
Publication
Application
Priority
EP 21275051 A 20210504
Abstract (en)
A motorised measurement arm apparatus (2) for a machine tool is described. The apparatus (2) comprises a base (4; 40) for attachment to the machine tool and an arm member (6;38) extending from the base for holding one or more sensors. The arm member (6;38) is moveable relative to the base between a stowed position (26b) and an operative position (26a), the operative position being defined by engagement of a mechanical stop arrangement (50a,50b). The apparatus also has a motor (44) for moving the arm member (6;38) relative to the base (4;10) and a motor controller (52,78) for energising the motor (44) to move the arm member (6;38) relative to the base (4;40). The motor controller (52,78) is configured to energise the motor (44) when the arm member (6;38) is in the operative position to maintain engagement of the mechanical stop arrangement (50a,50b). An operative position having improved repeatability is thus obtained.
IPC 8 full level
B23Q 17/24 (2006.01); B23Q 5/10 (2006.01); B23Q 16/02 (2006.01); B23Q 17/09 (2006.01); B23Q 17/22 (2006.01); G05B 19/401 (2006.01); G05B 19/402 (2006.01)
CPC (source: EP US)
B23Q 17/0914 (2013.01 - EP US); B23Q 17/22 (2013.01 - EP US); B23Q 2717/00 (2013.01 - US)
Citation (applicant)
- US 5446970 A 19950905 - MCMURTRY DAVID R [GB], et al
- US 6519863 B1 20030218 - MCMURTRY DAVID R [GB], et al
Citation (search report)
- [XAYI] EP 0207481 B1 19891018
- [Y] US 2006037443 A1 20060223 - D ANTONIO MARIO [CN]
- [Y] JP 2016193469 A 20161117 - NAKAMURA TOME PRECISION IND
- [AD] US 5446970 A 19950905 - MCMURTRY DAVID R [GB], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4086039 A1 20221109; CN 117545589 A 20240209; EP 4334081 A1 20240313; JP 2024519604 A 20240520; US 2024198474 A1 20240620; WO 2022234248 A1 20221110
DOCDB simple family (application)
EP 21275051 A 20210504; CN 202280044460 A 20220420; EP 22718771 A 20220420; GB 2022050987 W 20220420; JP 2023568219 A 20220420; US 202218288133 A 20220420